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Long-Range Entropic Effects on Protein Intrinsically Disordered Regions

preprint
submitted on 11.02.2019 and posted on 12.02.2019 by Joao Victor de Souza Cunha, Agnieszka K. Bronowska
Entropy calculations represent one of the most challenging steps in obtaining the binding free energy in proteins and their complexes, which is a grand challenge in computational biology. In this paper we define the workframe of a novel method to calculate structural entropy for protein molecular simulation : SQuE ( Strucutral Quantifier of Entropy). Using a first degree approximation for the probability distribution, we were able to calculate the entropic effects that emerges from a intrinsically disordered (ID) region in UDP-glucose 6-dehydrogenase (UGDH) protein structure. We were able to quantify the configurational entropy difference in the structured core caused by the truncation of the C-terminal ID-tail, and evaluate the protein conformational changes in the structured domain.

History

Email Address of Submitting Author

agnieszka.bronowska@newcastle.ac.uk

Institution

Newcastle University

Country

United Kingdom

ORCID For Submitting Author

0000-0003-3663-3224

Declaration of Conflict of Interest

No conflict of Interest

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